Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

38-116 schematic parts layout inaccuracies
#1

I just emptied the bakelite caps in my chassis (5 of them) and when I went to the Riders docs I noticed that the pictorial of the chassis layout does not include two of them (they are in the RF deck, middle of the chassis), both .05 caps. The layout does show the .05 caps, but as paper caps. I haven't had time to check the wiring on the schematic yet.

Does this difference indicate that I may not have the correct schematic for this run? I can't tell what run this chassis is from the chassis markings however. I like to use the parts layout diagram to help positively id the resistors along with color marking when checking tolerance and replacing, so I do use the layout a lot when restoring along with the schematic. Thanks for helping me understand this better.

Steve
#2

(04-13-2012, 07:56 AM)SteveJB Wrote:  I just emptied the bakelite caps in my chassis (5 of them) and when I went to the Riders docs I noticed that the pictorial of the chassis layout does not include two of them (they are in the RF deck, middle of the chassis), both .05 caps. The layout does show the .05 caps, but as paper caps. I haven't had time to check the wiring on the schematic yet.

Does this difference indicate that I may not have the correct schematic for this run? I can't tell what run this chassis is from the chassis markings however. I like to use the parts layout diagram to help positively id the resistors along with color marking when checking tolerance and replacing, so I do use the layout a lot when restoring along with the schematic. Thanks for helping me understand this better.

Steve

Working on my 38-116 radio now.I wonder what code number you have?
Mine is a code 121.Maybe you have a code 125?
I have only noticed 3 bakelite blocks on mine.
THe schematics and the bottom view of the chassis shows a .o5 and a .5 paper cap in the sub chassis on mine.
I am having a little difficult in reading the Philco schematics for this set.
More used to the schematics that give the actual layout of the chassis showing tube socket layout along with wiring diagram and all the caps and resistors.
murf
#3

I have a code 125. I agree this is a change from earlier schematics and layouts, they are a little more detailed.

(04-13-2012, 08:53 AM)murf Wrote:  
(04-13-2012, 07:56 AM)SteveJB Wrote:  I just emptied the bakelite caps in my chassis (5 of them) and when I went to the Riders docs I noticed that the pictorial of the chassis layout does not include two of them (they are in the RF deck, middle of the chassis), both .05 caps. The layout does show the .05 caps, but as paper caps. I haven't had time to check the wiring on the schematic yet.

Does this difference indicate that I may not have the correct schematic for this run? I can't tell what run this chassis is from the chassis markings however. I like to use the parts layout diagram to help positively id the resistors along with color marking when checking tolerance and replacing, so I do use the layout a lot when restoring along with the schematic. Thanks for helping me understand this better.

Steve

Working on my 38-116 radio now.I wonder what code number you have?
Mine is a code 121.Maybe you have a code 125?
I have only noticed 3 bakelite blocks on mine.
THe schematics and the bottom view of the chassis shows a .o5 and a .5 paper cap in the sub chassis on mine.
I am having a little difficult in reading the Philco schematics for this set.
More used to the schematics that give the actual layout of the chassis showing tube socket layout along with wiring diagram and all the caps and resistors.
murf





Users browsing this thread:
[-]
Recent Posts
Model 70 Cabinet Trim
musar , Well if you have any more questions feel free to post away . Sincerely Richardradiorich — 08:56 PM
Model 70 Cabinet Trim
Although I have not made any cabinets or cabinet parts for a couple of years, I still have some parts left over, includi...Steve Davis — 06:26 PM
philcorepairbench.com - shadow-meter
Thanks Ron.fenbach — 02:43 PM
Model 70 Cabinet Trim
Thank you, Gary. Before making my original post, I had clicked on "Steve Davis Cabinets" only to find that it...musar — 02:25 PM
philco predicta
Welcome to the Phorum, cgl18! I am not your resource for television repair, but lots of friendly help is available here...GarySP — 02:12 PM
Model 70 Cabinet Trim
Welcome to the Phorum, musar! You can send Steve Davis a private message (PM). The site is at the top of the Home page...GarySP — 02:09 PM
Model 70 Cabinet Trim
How do I contact him? The only contact information for him I could find when searching online was a telephone number th...musar — 10:38 AM
philco predicta
Hello, good afternoon, I would like to ask what the possible problem could be if I don't have an image on the screen. I ...cgl18 — 10:19 AM
Philco model 38 code 121 not receiving signal.
So one last question before I finish this radio. Regarding the speaker and output transformer. I salvaged the original o...Stormlord5500 — 09:31 AM
462ron
It’s on the bottom of the homepage of our Philcoradio.com homepage! Ron462ron — 07:20 AM

[-]
Who's Online
There are currently 446 online users. [Complete List]
» 2 Member(s) | 444 Guest(s)
AvatarAvatar

>